Minetest tool ranks mod
Tool gains levels for digging nodes. Higher level tools take longer to wear out.
Does one of your mods add new tools?
If so, to support this mod, check if it is loaded with
minetest.get_modpath("toolranks")
and then replace all after_use definitions with toolranks.new_afteruse.
Optionaly, you can also replace tools description with
toolranks.create_description("Tool Name", 0, 1)
and then set original_description to your tools name.